In India, Mobile Phone SIM is a problem due to vast area and less coverage. Here is the list of best SIM.
Recently my mobile phone was stolen while I was travelling. So to get new card keeping same number was difficult and had some issues.
Problem with BSNL & Cellone GSM sim card. Was giving error "Your account is inactive, kindly recharge to continue your service" activate now
Got new Vodafone GSM SIM card, now having problem with activation and verification. Here is complete guide to how I activated my new SIM.